[Featureserver] Service type does not support adding features

[John Cartwright]

Hello All,

I'm just trying out featureserver (v.1.10) for the first time and  
attempting to follow the demo instructions on http://featureserver.org.

0) unpacked the distribution into the apache CGI directory

1) hit the URL http://localhost/cgi-bin/featureserver-1.10/ 
featureserver.cgi/scribble/all.gml
so far, so good

2) echo '{"id":1, "geometry":{"type":"Point", "coordinates": 
[[0,5]]}}' | curl -d @- http://localhost/cgi-bin/featureserver-1.10/ 
featureserver.cgi/all.gml

"An error occurred: Service type does not support adding features."

confirmed that the featureserver.cfg has DBM as the type for scribble  
and that the db file is present and has write permissions for all.

Can someone point out what I'm doing wrong here?  I've had the same  
experience on both Mac OS X 10.4 and Red Hat Linux WS-5.

Thanks!

--john